Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“The question has not been answered to date”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2514602687

Proof data

Record hash (SHA-256)

1246bd66ad1cc639bd45347b36b077a47c06a49e17070a30c7b72a72b0b8b65d

Signature (Ed25519, base64)

kQoJhcm+xt/7/iHEKDp6gBhLVp6aMxAEgzL2WpTHb3CYFWT6vBuMogOoN/7BxvHYzWQcYxy3p2nuvkZwQrAqAw==

Merkle root

749703591848535a8600340214debbd99b61273e3bed402bec28b292f90ce9b6

Merkle path

["124adccbac74bfe10144d3b8ab3bdf7330a8a876f984be85c5503926d8724774","3164dc121a5c422c97dc7fd4dacc75780ea143dbea2a0c586867b87598eb5721","e922bfd9ae797fc7105d123cc0928def266d9383a37080501721f62b1fad3bd5","1423e40dbce677df9c2bbe84f298cd9d7abf286d6549b89187d9876bbc7cca4f","2c73eef1f570603a4e3535f0bd887886a1b6cfe2955420a1e8daa12f7055d4a2","ced89614d59df7efba07eb23f4f67343de4e1d94c3e2eff74f2f96627071fd11","c65f9cee3feee93eb9332e8fdbeb7781991c95ab0767d71be8358ba0f3966792","d3aaaa700a82c9d3c2ecf4b472819676f0898a0c234b1f4f4ab9351c9172d999","801d9c934cce419c4ba305be31919cdfe87458dde7ce20b16c4b625e63dc7b12","6785dcf6fac4908b4f2c74c057d327c83f10131eef8ea9e04e29dbf037da11c1","93679534062379205612628dc9781008baf49947d9dbfa452e39b3c67e2ad30c","a7574a1284f296e344531b28e98ffbc4091b43e8e280936e3f14d9482fb06f49","34c0dfbb126009f4c79d4469e45bcea801fec7d101a7b81a66d8a0095ff6d708","f43a1936699be5b728ab2cee5100b0cce7fa6828f7bb521f1ba149ba44cd48a1","bc5d1d560a30e83fe0f1b6a9452dc46dc135b1a7f73575ec3aa5d459bb76fc8b"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514602687 · entry 108e9186e8c5677ac525…

Expected log hash

e53e7f935eb508100ef1046b60c784e0bda15dd54afae176c275a97cf1f64052 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1787131269839","kind":"published-quote","locale":"en","page":"theme:smallpdf/communication/en","quote":"The question has not been answered to date","rating":1,"review_date":"2025-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (749703591848…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.